Answer
$n^5(5n+2)$.
Work Step by Step
The given expression is
$=5n^6+2n^5$
The GCF of $5$ and $2$ is $1$.
The GCF of $n^6$ and $n^5$ is $n^5$.
So, the greatest common monomial factor of the terms is $n^5$.
Hence, the factor form is $n^5(5n+2)$.